London Underground in Electric Railway Journal 1915-1931

"A Signal School in a Tunnel" (1927)	"Cars Remodeled on Central London Railway/Extensive Modernization Program..." (1926)	"Equipment and Design Features of Metropolitan District Cars [F Stock]" (1921)	"Extension of London Underground System [Bakerloo Line]" (1917)	"Helping the Patron on London's Underground" (1929)	"London Subway Extended by Tunneling" (1926)
"London Underground Completes Extensive Station at Piccadilly Circus" (1929)	"London Underground Uses Ticket-Issuing Machines" (1928)	"London's Complicated Transportation Situation" (1924)	"Metropolitan Railway Locomotive Reconstruction" (1923)	"New Car for Metropolitan Railway, London" (1928)	"New Cars for London Underground Railways" (1923)
"New Cars for the "Bakerloo" Line" (1920)	"Oldest London Tube Reopened [City & South London]" (1925)	"Recent London Underground Advertising Posters" (1924)